One failure of the Lino Welfare test suite was due to the fact that
the Django’s test command has a new way to discover test
cases. It took me some time to realize that I need indeed a
lino_welfare.projects package to manage all those sets of
settings.

Moved and renamed many files. Some examples:

lino_welfare.settings.eupen

lino_welfare.projects.eupen.settings

lino_welfare.settings.base

lino_welfare.projects.base

10h17 Finally! The Lino Welfare test suite is again operational. It
was some work, but (1) it gives me confidence and (2) it covers
certain Lino features that are not tested within Lino itself.